Answer:
there is no pics any problem?
The minimum cost option can be obtained simply by multiplying the number of ordered printers by the cost of one printer and adding the costs of both types of printers. Considering the options:
69 x 237 + 51 x 122 = 22,575
40 x 237 + 80 x 122 = 19,240
51 x 237 + 69 x 122 = 20,505
80 x 237 + 40 x 122 = 23,840
Therefore, the lowest cost option is to buy 40 of printer A and 80 of printer B
The equation, x + 2y ≤ 1600 is satisfied only by options:
x = 400; y = 600
x = 1600
Substituting these into the profit equation:
14(400) + 22(600) - 900 = 17,900
14(1600) + 22(0) - 900 = 21,500
Therefore, the option (1,600 , 0) will produce greatest profit.
Let's use Unitary method to solve the question ~
Therefore, 1 mm corresponds to 5 mile according to the map.
so, correct choice is ~
The first thing that's easiest for me, at least, is to make the mixed number into an improper fraction. That would make this problem 5 x 15/4. Just make five into a fraction, 5/1 and then put it into the problem:
5/1 x 15/4 = 75/4
Now, put the answer you got back into a mixed number (if your teacher wants you to)
How many times does four go into 75? 18, with a remainder of 3. The answer as a mixed number would be 18 3/4 or 18.75
